A couple years back I tried to replace the driver side mirror on my '77 MM with a mirror I got from the junkyard that has one of those optional Cadillac emblem thermometers on it. Once it was on the unit was crooked so I had to change it back. Im not sure if I got it off of a Deville or Fleetwood but it was indeed a 77-79 so I figured it wouldve fit. My question is do the hearse doors have different lines than a Deville or Fleetwood? Id like to figure it out because id like to buy the correct angled mirror with one of those thermometers on it.